Let z is a complex number such that then
is
Purely real
Purely imaginary
complex with non-zero real & imaginary part
Can't be determined
Property of conjugate of complex number -
- wherein
,
Option 1)
Purely real
This is incorrect
Option 2)
Purely imaginary
This is correct
Option 3)
complex with non-zero real & imaginary part
This is incorrect
Option 4)
Can't be determined
This is incorrect
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